/[gentoo-x86]/eclass/toolchain-funcs.eclass
Gentoo

Diff of /eclass/toolchain-funcs.eclass

Parent Directory Parent Directory | Revision Log Revision Log | View Patch Patch

Revision 1.85 Revision 1.102
1# Copyright 1999-2007 Gentoo Foundation 1# Copyright 1999-2007 Gentoo Foundation
2# Distributed under the terms of the GNU General Public License v2 2# Distributed under the terms of the GNU General Public License v2
3# $Header: /var/cvsroot/gentoo-x86/eclass/toolchain-funcs.eclass,v 1.85 2009/01/27 23:35:04 vapier Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/toolchain-funcs.eclass,v 1.102 2010/09/11 17:12:20 vapier Exp $
4 4
5# @ECLASS: toolchain-funcs.eclass 5# @ECLASS: toolchain-funcs.eclass
6# @MAINTAINER: 6# @MAINTAINER:
7# Toolchain Ninjas <toolchain@gentoo.org> 7# Toolchain Ninjas <toolchain@gentoo.org>
8# @BLURB: functions to query common info about the toolchain 8# @BLURB: functions to query common info about the toolchain
70tc-getNM() { tc-getPROG NM nm "$@"; } 70tc-getNM() { tc-getPROG NM nm "$@"; }
71# @FUNCTION: tc-getRANLIB 71# @FUNCTION: tc-getRANLIB
72# @USAGE: [toolchain prefix] 72# @USAGE: [toolchain prefix]
73# @RETURN: name of the archiver indexer 73# @RETURN: name of the archiver indexer
74tc-getRANLIB() { tc-getPROG RANLIB ranlib "$@"; } 74tc-getRANLIB() { tc-getPROG RANLIB ranlib "$@"; }
75# @FUNCTION: tc-getOBJCOPY
76# @USAGE: [toolchain prefix]
77# @RETURN: name of the object copier
78tc-getOBJCOPY() { tc-getPROG OBJCOPY objcopy "$@"; }
75# @FUNCTION: tc-getF77 79# @FUNCTION: tc-getF77
76# @USAGE: [toolchain prefix] 80# @USAGE: [toolchain prefix]
77# @RETURN: name of the Fortran 77 compiler 81# @RETURN: name of the Fortran 77 compiler
78tc-getF77() { tc-getPROG F77 f77 "$@"; } 82tc-getF77() { tc-getPROG F77 gfortran "$@"; }
79# @FUNCTION: tc-getFC 83# @FUNCTION: tc-getFC
80# @USAGE: [toolchain prefix] 84# @USAGE: [toolchain prefix]
81# @RETURN: name of the Fortran 90 compiler 85# @RETURN: name of the Fortran 90 compiler
82tc-getFC() { tc-getPROG FC gfortran "$@"; } 86tc-getFC() { tc-getPROG FC gfortran "$@"; }
83# @FUNCTION: tc-getGCJ 87# @FUNCTION: tc-getGCJ
84# @USAGE: [toolchain prefix] 88# @USAGE: [toolchain prefix]
85# @RETURN: name of the java compiler 89# @RETURN: name of the java compiler
86tc-getGCJ() { tc-getPROG GCJ gcj "$@"; } 90tc-getGCJ() { tc-getPROG GCJ gcj "$@"; }
91# @FUNCTION: tc-getPKG_CONFIG
92# @USAGE: [toolchain prefix]
93# @RETURN: name of the pkg-config tool
94tc-getPKG_CONFIG() { tc-getPROG PKG_CONFIG pkg-config "$@"; }
95# @FUNCTION: tc-getRC
96# @USAGE: [toolchain prefix]
97# @RETURN: name of the Windows resource compiler
98tc-getRC() { tc-getPROG RC windres "$@"; }
99# @FUNCTION: tc-getDLLWRAP
100# @USAGE: [toolchain prefix]
101# @RETURN: name of the Windows dllwrap utility
102tc-getDLLWRAP() { tc-getPROG DLLWRAP dllwrap "$@"; }
87 103
88# @FUNCTION: tc-getBUILD_CC 104# @FUNCTION: tc-getBUILD_CC
89# @USAGE: [toolchain prefix] 105# @USAGE: [toolchain prefix]
90# @RETURN: name of the C compiler for building binaries to run on the build machine 106# @RETURN: name of the C compiler for building binaries to run on the build machine
91tc-getBUILD_CC() { 107tc-getBUILD_CC() {
132# See if this toolchain is a softfloat based one. 148# See if this toolchain is a softfloat based one.
133# @CODE 149# @CODE
134# The possible return values: 150# The possible return values:
135# - only: the target is always softfloat (never had fpu) 151# - only: the target is always softfloat (never had fpu)
136# - yes: the target should support softfloat 152# - yes: the target should support softfloat
137# - no: the target should support hardfloat 153# - no: the target doesn't support softfloat
138# @CODE 154# @CODE
139# This allows us to react differently where packages accept 155# This allows us to react differently where packages accept
140# softfloat flags in the case where support is optional, but 156# softfloat flags in the case where support is optional, but
141# rejects softfloat flags where the target always lacks an fpu. 157# rejects softfloat flags where the target always lacks an fpu.
142tc-is-softfloat() { 158tc-is-softfloat() {
148 && echo "yes" \ 164 && echo "yes" \
149 || echo "no" 165 || echo "no"
150 ;; 166 ;;
151 esac 167 esac
152} 168}
169
170# @FUNCTION: tc-is-hardfloat
171# @DESCRIPTION:
172# See if this toolchain is a hardfloat based one.
173# @CODE
174# The possible return values:
175# - yes: the target should support hardfloat
176# - no: the target doesn't support hardfloat
177tc-is-hardfloat() {
178 [[ ${CTARGET//_/-} == *-hardfloat-* ]] \
179 && echo "yes" \
180 || echo "no"
181}
182
183# @FUNCTION: tc-is-static-only
184# @DESCRIPTION:
185# Return shell true if the target does not support shared libs, shell false
186# otherwise.
187tc-is-static-only() {
188 local host=${CTARGET:-${CHOST}}
189
190 # *MiNT doesn't have shared libraries, only platform so far
191 return $([[ ${host} == *-mint* ]])
192}
193
194# @FUNCTION: tc-has-openmp
195# @USAGE: [toolchain prefix]
196# @DESCRIPTION:
197# See if the toolchain supports OpenMP.
198tc-has-openmp() {
199 local base="${T}/test-tc-openmp"
200 cat <<-EOF > "${base}.c"
201 #include <omp.h>
202 int main() {
203 int nthreads, tid, ret = 0;
204 #pragma omp parallel private(nthreads, tid)
205 {
206 tid = omp_get_thread_num();
207 nthreads = omp_get_num_threads(); ret += tid + nthreads;
208 }
209 return ret;
210 }
211 EOF
212 $(tc-getCC "$@") -fopenmp "${base}.c" -o "${base}" >&/dev/null
213 local ret=$?
214 rm -f "${base}"*
215 return ${ret}
216}
217
218# @FUNCTION: tc-has-tls
219# @USAGE: [-s|-c|-l] [toolchain prefix]
220# @DESCRIPTION:
221# See if the toolchain supports thread local storage (TLS). Use -s to test the
222# compiler, -c to also test the assembler, and -l to also test the C library
223# (the default).
224tc-has-tls() {
225 local base="${T}/test-tc-tls"
226 cat <<-EOF > "${base}.c"
227 int foo(int *i) {
228 static __thread int j = 0;
229 return *i ? j : *i;
230 }
231 EOF
232 local flags
233 case $1 in
234 -s) flags="-S";;
235 -c) flags="-c";;
236 -l) ;;
237 -*) die "Usage: tc-has-tls [-c|-l] [toolchain prefix]";;
238 esac
239 : ${flags:=-fPIC -shared -Wl,-z,defs}
240 [[ $1 == -* ]] && shift
241 $(tc-getCC "$@") ${flags} "${base}.c" -o "${base}" >&/dev/null
242 local ret=$?
243 rm -f "${base}"*
244 return ${ret}
245}
246
153 247
154# Parse information from CBUILD/CHOST/CTARGET rather than 248# Parse information from CBUILD/CHOST/CTARGET rather than
155# use external variables from the profile. 249# use external variables from the profile.
156tc-ninja_magic_to_arch() { 250tc-ninja_magic_to_arch() {
157ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; } 251ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; }
264 x86_64*) echo little;; 358 x86_64*) echo little;;
265 *) echo wtf;; 359 *) echo wtf;;
266 esac 360 esac
267} 361}
268 362
363# Internal func. The first argument is the version info to expand.
364# Query the preprocessor to improve compatibility across different
365# compilers rather than maintaining a --version flag matrix. #335943
366_gcc_fullversion() {
367 local ver="$1"; shift
368 set -- `$(tc-getCPP "$@") -E -P - <<<"__GNUC__ __GNUC_MINOR__ __GNUC_PATCHLEVEL__"`
369 eval echo "$ver"
370}
371
269# @FUNCTION: gcc-fullversion 372# @FUNCTION: gcc-fullversion
270# @RETURN: compiler version (major.minor.micro: [3.4.6]) 373# @RETURN: compiler version (major.minor.micro: [3.4.6])
271gcc-fullversion() { 374gcc-fullversion() {
272 $(tc-getCC "$@") -dumpversion 375 _gcc_fullversion '$1.$2.$3' "$@"
273} 376}
274# @FUNCTION: gcc-version 377# @FUNCTION: gcc-version
275# @RETURN: compiler version (major.minor: [3.4].6) 378# @RETURN: compiler version (major.minor: [3.4].6)
276gcc-version() { 379gcc-version() {
277 gcc-fullversion "$@" | cut -f1,2 -d. 380 _gcc_fullversion '$1.$2' "$@"
278} 381}
279# @FUNCTION: gcc-major-version 382# @FUNCTION: gcc-major-version
280# @RETURN: major compiler version (major: [3].4.6) 383# @RETURN: major compiler version (major: [3].4.6)
281gcc-major-version() { 384gcc-major-version() {
282 gcc-version "$@" | cut -f1 -d. 385 _gcc_fullversion '$1' "$@"
283} 386}
284# @FUNCTION: gcc-minor-version 387# @FUNCTION: gcc-minor-version
285# @RETURN: minor compiler version (minor: 3.[4].6) 388# @RETURN: minor compiler version (minor: 3.[4].6)
286gcc-minor-version() { 389gcc-minor-version() {
287 gcc-version "$@" | cut -f2 -d. 390 _gcc_fullversion '$2' "$@"
288} 391}
289# @FUNCTION: gcc-micro-version 392# @FUNCTION: gcc-micro-version
290# @RETURN: micro compiler version (micro: 3.4.[6]) 393# @RETURN: micro compiler version (micro: 3.4.[6])
291gcc-micro-version() { 394gcc-micro-version() {
292 gcc-fullversion "$@" | cut -f3 -d. | cut -f1 -d- 395 _gcc_fullversion '$3' "$@"
293} 396}
294 397
295# Returns the installation directory - internal toolchain 398# Returns the installation directory - internal toolchain
296# function for use by _gcc-specs-exists (for flag-o-matic). 399# function for use by _gcc-specs-exists (for flag-o-matic).
297_gcc-install-dir() { 400_gcc-install-dir() {
397# Note that you should in general use the unversioned name of 500# Note that you should in general use the unversioned name of
398# the library (libfoo.so), as ldconfig should usually update it 501# the library (libfoo.so), as ldconfig should usually update it
399# correctly to point to the latest version of the library present. 502# correctly to point to the latest version of the library present.
400gen_usr_ldscript() { 503gen_usr_ldscript() {
401 local lib libdir=$(get_libdir) output_format="" auto=false suffix=$(get_libname) 504 local lib libdir=$(get_libdir) output_format="" auto=false suffix=$(get_libname)
505 [[ -z ${ED+set} ]] && local ED=${D%/}${EPREFIX}/
506
507 tc-is-static-only && return
508
402 # Just make sure it exists 509 # Just make sure it exists
403 dodir /usr/${libdir} 510 dodir /usr/${libdir}
404 511
405 if [[ $1 == "-a" ]] ; then 512 if [[ $1 == "-a" ]] ; then
406 auto=true 513 auto=true
412 # is referenced ... makes multilib saner 519 # is referenced ... makes multilib saner
413 output_format=$($(tc-getCC) ${CFLAGS} ${LDFLAGS} -Wl,--verbose 2>&1 | sed -n 's/^OUTPUT_FORMAT("\([^"]*\)",.*/\1/p') 520 output_format=$($(tc-getCC) ${CFLAGS} ${LDFLAGS} -Wl,--verbose 2>&1 | sed -n 's/^OUTPUT_FORMAT("\([^"]*\)",.*/\1/p')
414 [[ -n ${output_format} ]] && output_format="OUTPUT_FORMAT ( ${output_format} )" 521 [[ -n ${output_format} ]] && output_format="OUTPUT_FORMAT ( ${output_format} )"
415 522
416 for lib in "$@" ; do 523 for lib in "$@" ; do
417 if [[ ${USERLAND} == "Darwin" ]] ; then 524 local tlib
418 ewarn "Not creating fake dynamic library for $lib on Darwin;" 525 if ${auto} ; then
419 ewarn "making a symlink instead." 526 lib="lib${lib}${suffix}"
420 dosym "/${libdir}/${lib}" "/usr/${libdir}/${lib}"
421 else 527 else
422 local tlib 528 # Ensure /lib/${lib} exists to avoid dangling scripts/symlinks.
529 # This especially is for AIX where $(get_libname) can return ".a",
530 # so /lib/${lib} might be moved to /usr/lib/${lib} (by accident).
531 [[ -r ${ED}/${libdir}/${lib} ]] || continue
532 #TODO: better die here?
533 fi
534
535 case ${CTARGET:-${CHOST}} in
536 *-darwin*)
423 if ${auto} ; then 537 if ${auto} ; then
424 lib="lib${lib}${suffix}" 538 tlib=$(scanmacho -qF'%S#F' "${ED}"/usr/${libdir}/${lib})
425 mv "${D}"/usr/${libdir}/${lib}* "${D}"/${libdir}/ || die 539 else
426 tlib=$(scanelf -qF'%S#F' "${D}"/${libdir}/${lib}) 540 tlib=$(scanmacho -qF'%S#F' "${ED}"/${libdir}/${lib})
541 fi
427 [[ -z ${tlib} ]] && die "unable to read SONAME from ${lib}" 542 [[ -z ${tlib} ]] && die "unable to read install_name from ${lib}"
543 tlib=${tlib##*/}
544
545 if ${auto} ; then
546 mv "${ED}"/usr/${libdir}/${lib%${suffix}}.*${suffix#.} "${ED}"/${libdir}/ || die
547 # some install_names are funky: they encode a version
548 if [[ ${tlib} != ${lib%${suffix}}.*${suffix#.} ]] ; then
549 mv "${ED}"/usr/${libdir}/${tlib%${suffix}}.*${suffix#.} "${ED}"/${libdir}/ || die
550 fi
428 rm -f "${D}"/${libdir}/${lib} 551 rm -f "${ED}"/${libdir}/${lib}
552 fi
553
554 # Mach-O files have an id, which is like a soname, it tells how
555 # another object linking against this lib should reference it.
556 # Since we moved the lib from usr/lib into lib this reference is
557 # wrong. Hence, we update it here. We don't configure with
558 # libdir=/lib because that messes up libtool files.
559 # Make sure we don't lose the specific version, so just modify the
560 # existing install_name
561 if [[ ! -w "${ED}/${libdir}/${tlib}" ]] ; then
562 chmod u+w "${ED}${libdir}/${tlib}" # needed to write to it
563 local nowrite=yes
564 fi
565 install_name_tool \
566 -id "${EPREFIX}"/${libdir}/${tlib} \
567 "${ED}"/${libdir}/${tlib} || die "install_name_tool failed"
568 [[ -n ${nowrite} ]] && chmod u-w "${ED}${libdir}/${tlib}"
569 # Now as we don't use GNU binutils and our linker doesn't
570 # understand linker scripts, just create a symlink.
571 pushd "${ED}/usr/${libdir}" > /dev/null
572 ln -snf "../../${libdir}/${tlib}" "${lib}"
573 popd > /dev/null
574 ;;
575 *-aix*|*-irix*|*64*-hpux*|*-interix*|*-winnt*)
576 if ${auto} ; then
577 mv "${ED}"/usr/${libdir}/${lib}* "${ED}"/${libdir}/ || die
578 # no way to retrieve soname on these platforms (?)
579 tlib=$(readlink "${ED}"/${libdir}/${lib})
580 tlib=${tlib##*/}
581 if [[ -z ${tlib} ]] ; then
582 # ok, apparently was not a symlink, don't remove it and
583 # just link to it
584 tlib=${lib}
585 else
586 rm -f "${ED}"/${libdir}/${lib}
587 fi
429 else 588 else
430 tlib=${lib} 589 tlib=${lib}
431 fi 590 fi
591
592 # we don't have GNU binutils on these platforms, so we symlink
593 # instead, which seems to work fine. Keep it relative, otherwise
594 # we break some QA checks in Portage
595 # on interix, the linker scripts would work fine in _most_
596 # situations. if a library links to such a linker script the
597 # absolute path to the correct library is inserted into the binary,
598 # which is wrong, since anybody linking _without_ libtool will miss
599 # some dependencies, since the stupid linker cannot find libraries
600 # hardcoded with absolute paths (as opposed to the loader, which
601 # seems to be able to do this).
602 # this has been seen while building shared-mime-info which needs
603 # libxml2, but links without libtool (and does not add libz to the
604 # command line by itself).
605 pushd "${ED}/usr/${libdir}" > /dev/null
606 ln -snf "../../${libdir}/${tlib}" "${lib}"
607 popd > /dev/null
608 ;;
609 hppa*-hpux*) # PA-RISC 32bit (SOM) only, others (ELF) match *64*-hpux* above.
610 if ${auto} ; then
611 tlib=$(chatr "${ED}"/usr/${libdir}/${lib} | sed -n '/internal name:/{n;s/^ *//;p;q}')
612 [[ -z ${tlib} ]] && tlib=${lib}
613 tlib=${tlib##*/} # 'internal name' can have a path component
614 mv "${ED}"/usr/${libdir}/${lib}* "${ED}"/${libdir}/ || die
615 # some SONAMEs are funky: they encode a version before the .so
616 if [[ ${tlib} != ${lib}* ]] ; then
617 mv "${ED}"/usr/${libdir}/${tlib}* "${ED}"/${libdir}/ || die
618 fi
619 [[ ${tlib} != ${lib} ]] &&
620 rm -f "${ED}"/${libdir}/${lib}
621 else
622 tlib=$(chatr "${ED}"/${libdir}/${lib} | sed -n '/internal name:/{n;s/^ *//;p;q}')
623 [[ -z ${tlib} ]] && tlib=${lib}
624 tlib=${tlib##*/} # 'internal name' can have a path component
625 fi
626 pushd "${ED}"/usr/${libdir} >/dev/null
627 ln -snf "../../${libdir}/${tlib}" "${lib}"
628 # need the internal name in usr/lib too, to be available at runtime
629 # when linked with /path/to/lib.sl (hardcode_direct_absolute=yes)
630 [[ ${tlib} != ${lib} ]] &&
631 ln -snf "../../${libdir}/${tlib}" "${tlib}"
632 popd >/dev/null
633 ;;
634 *)
635 if ${auto} ; then
636 tlib=$(scanelf -qF'%S#F' "${ED}"/usr/${libdir}/${lib})
637 [[ -z ${tlib} ]] && die "unable to read SONAME from ${lib}"
638 mv "${ED}"/usr/${libdir}/${lib}* "${ED}"/${libdir}/ || die
639 # some SONAMEs are funky: they encode a version before the .so
640 if [[ ${tlib} != ${lib}* ]] ; then
641 mv "${ED}"/usr/${libdir}/${tlib}* "${ED}"/${libdir}/ || die
642 fi
643 rm -f "${ED}"/${libdir}/${lib}
644 else
645 tlib=${lib}
646 fi
432 cat > "${D}/usr/${libdir}/${lib}" <<-END_LDSCRIPT 647 cat > "${ED}/usr/${libdir}/${lib}" <<-END_LDSCRIPT
433 /* GNU ld script 648 /* GNU ld script
434 Since Gentoo has critical dynamic libraries 649 Since Gentoo has critical dynamic libraries in /lib, and the static versions
435 in /lib, and the static versions in /usr/lib, 650 in /usr/lib, we need to have a "fake" dynamic lib in /usr/lib, otherwise we
436 we need to have a "fake" dynamic lib in /usr/lib, 651 run into linking problems. This "fake" dynamic lib is a linker script that
437 otherwise we run into linking problems. 652 redirects the linker to the real lib. And yes, this works in the cross-
653 compiling scenario as the sysroot-ed linker will prepend the real path.
438 654
439 See bug http://bugs.gentoo.org/4411 for more info. 655 See bug http://bugs.gentoo.org/4411 for more info.
440 */ 656 */
441 ${output_format} 657 ${output_format}
442 GROUP ( /${libdir}/${tlib} ) 658 GROUP ( ${EPREFIX}/${libdir}/${tlib} )
443 END_LDSCRIPT 659 END_LDSCRIPT
660 ;;
661 esac
444 fperms a+x "/usr/${libdir}/${lib}" || die "could not change perms on ${lib}" 662 fperms a+x "/usr/${libdir}/${lib}" || die "could not change perms on ${lib}"
445 fi
446 done 663 done
447} 664}

Legend:
Removed from v.1.85  
changed lines
  Added in v.1.102

  ViewVC Help
Powered by ViewVC 1.1.20